|本期目录/Table of Contents|

[1]唐晓清,刘谕,杨睿,等.盐胁迫对苗期水飞蓟生理与活性成分的影响[J].江苏农业科学,2018,46(21):135-139.
 Tang Xiaoqing,et al.Effects of salt stress on physiology and active component of Silybum marianum at seedling stage[J].Jiangsu Agricultural Sciences,2018,46(21):135-139.
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盐胁迫对苗期水飞蓟生理与活性成分的影响(PDF)
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《江苏农业科学》[ISSN:1002-1302/CN:32-1214/S]

卷:
第46卷
期数:
2018年第21期
页码:
135-139
栏目:
园艺与林学
出版日期:
2018-11-05

文章信息/Info

Title:
Effects of salt stress on physiology and active component of Silybum marianum at seedling stage
作者:
唐晓清1 刘谕1 杨睿2 李林华3 王雨1 施晟璐1 王康才1
1.南京农业大学中药研究所,江苏南京 210095; 2.南京市第九中学,江苏南京 210018;
3.安徽中医药高等专科学校药学系,安徽芜湖 241003
Author(s):
Tang Xiaoqinget al
关键词:
水飞蓟NaCl胁迫活性成分生理特征耐盐栽培
Keywords:
-
分类号:
S567.23+9.01
DOI:
-
文献标志码:
A
摘要:
以苗期水飞蓟为试验材料,用100 mmol/L NaCl对水飞蓟进行不同时间(0、1、2、3、4、5 d,分别记为CK、T1、T2、T3、T4、T5)的胁迫处理,分析其生理特征及活性成分含量,以探讨苗期水飞蓟对盐胁迫的响应机制。结果表明,(1)叶片中叶绿素相对含量随着盐胁迫时间的延长而降低,胁迫处理T4、T5的叶绿素相对含量显著低于CK;(2)随着盐胁迫时间的延长,超氧化物歧化酶(superoxide dismutase,简称SOD)、过氧化物酶(peroxidase,简称POD)与过氧化氢酶(catalase,简称CAT)3种酶的活性呈现升高-降低-升高的趋势,其中T1处理CAT,T4处理SOD、POD的酶活性均为最高值,且显著高于相应的CK;可溶性蛋白和可溶性糖含量呈现降低-升高-降低-升高的趋势,T2、T3处理的可溶性蛋白高于CK,但可溶性糖含量均低于CK;丙二醛(malondialdehyde,简称MDA)含量则呈现降低-升高-降低的趋势,且所有处理均显著低于CK;(3)总黄酮与水飞蓟宾含量随着盐胁迫时间的延长呈现先降低后升高的趋势,其中胁迫处理T5的总黄酮含量最高,水飞蓟宾含量均低于CK,但胁迫处理5 d的水飞蓟宾含量显著高于其余胁迫处理。可见苗期水飞蓟在一定时间的NaCl胁迫下,通过提高其体内的保护酶活性和降低MDA含量、可溶性糖含量可以缓解盐胁迫的伤害,但适度的盐胁迫能促进其体内总黄酮含量的积累。
Abstract:
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备注/Memo

备注/Memo:
收稿日期:2017-07-07
基金项目:江苏省大学生实践创新训练项目(编号:201510307028X)。
作者简介:唐晓清(1970—),女,四川内江人,博士,副教授,主要从事药用植物栽培与中药质量控制方面的研究。E-mail:xqtang@njau.edu.cn。
更新日期/Last Update: 2018-11-05